84459 has 8 divisors (see below), whose sum is σ = 115200. Its totient is φ = 55016.

The previous prime is 84457. The next prime is 84463. The reversal of 84459 is 95448.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84459 - 2¹ = 84457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (84457) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159 + ... + 440.

It is an arithmetic number, because the mean of its divisors is an integer number (14400).

2⁸⁴⁴⁵⁹ is an apocalyptic number.

84459 is a deficient number, since it is larger than the sum of its proper divisors (30741).

84459 is a wasteful number, since it uses less digits than its factorization.

84459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649.

The product of its digits is 5760, while the sum is 30.

The square root of 84459 is about 290.6183063745. The cubic root of 84459 is about 43.8748163562.

It can be divided in two parts, 844 and 59, that added together give a triangular number (903 = T₄₂).

The spelling of 84459 in words is "eighty-four thousand, four hundred fifty-nine".